CN116542029A - MDT manufacturing method and system based on ocean numerical mode and observation data assimilation - Google Patents
MDT manufacturing method and system based on ocean numerical mode and observation data assimilation Download PDFInfo
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Abstract
The invention discloses a method and a system for manufacturing MDT based on marine numerical mode and observation data assimilation, wherein the method comprises the following steps: acquiring marine field observation data, and performing quality control and format conversion on the marine field observation data to obtain the observation data meeting the requirements of marine numerical mode format; based on a plurality of preset moments of the ocean numerical mode, assimilating the observed data, returning the assimilation result to the ocean numerical mode, continuously operating the ocean numerical mode until reaching the preset operation duration, obtaining corresponding long-term operation data, extracting sea surface height variables from the long-term operation data, calculating the average value of the long-term operation data, and manufacturing and generating an MDT data product. According to the MDT method and system provided by the invention, based on the physical characteristics of the ocean average power terrain and the ground reference surface, the ocean full-field physical structure optimization adjustment is realized by assimilating the ocean temperature and salinity profile on-site observation data for a long time in the ocean numerical mode, and a stable and reliable MDT data product can be generated.
Description
Technical Field
The invention relates to the technical field of ocean physics and offshore wind energy resource utilization, in particular to a method and a system for manufacturing MDT based on ocean numerical mode and observation data assimilation.
Background
Sea surface dynamic topography is the fluctuation of the average sea surface relative to the ground level, and is the change of the average sea surface caused by non-tidal flood factors. The sea surface topography and the formation mechanism thereof have important significance in geodetic and marine research, and the method for determining the sea surface dynamic topography is mainly divided into three methods of hydrology, drifting buoy track and geodetic method (gravity-satellite altimetry).
In the field of marine satellite observation and marine numerical mode, accurate observation on the geodesic plane of an earth ellipse sphere is lacking, so that the marine dynamic topography obtained by taking the geodesic plane as a reference plane and carrying out measurement and calculation can generate larger observation errors, particularly the average dynamic topography (mean dynamic Topography, MDT) which needs long-term data as a precondition, and the feasible direct observation data is difficult to be provided. At present, for direct observation of a ground reference plane and ocean power terrain, it is difficult to accurately detect the change of the ocean power terrain caused by the influence of an ocean upper physical structure by means of satellite remote sensing detection, and errors are larger due to the influence of land terrain in offshore areas; the single-point on-site measurement mode has more accurate observation on local ocean power terrain, but lacks a global ocean unified observation system and corresponding data quality standard, and is difficult to be widely applied to the research of global ocean power terrain.
Therefore, in the fields of marine physics and numerical simulation at home and abroad, the long-term average value of the sea surface height simulated by the marine numerical mode is basically adopted as an actual substitute product of MDT, so that the application and research of other marine observation data and physical analysis based on MDT are realized. However, in the ocean numerical mode, due to the influence of various factors such as the physical frame, lattice resolution, parameter selection, driving data and the like of the mode, a certain degree of deviation is inevitably generated in the long-term average value of the simulated sea level height, so that the deviation from the actual MDT exists, and the reliability and the subsequent application value of the generated MDT data are influenced. In addition, the MDT generated by calculation of the ocean numerical mode is essentially related to ocean circulation and the depicting and reproducing capability of the physical structure of the ocean upper layer by the ocean mode, and various researches show that, especially in the ocean area with severe ocean hydrologic characteristic change, the MDT depicting information from different sources is obviously different, and the negative effect of subsequent assimilation of other ocean observation materials can be caused.
Disclosure of Invention
Therefore, the invention provides the method and the system for manufacturing the MDT based on the marine numerical mode and the observation data assimilation, and the method for assimilating the marine temperature and the salinity profile on-site observation data in the marine numerical mode is utilized to realize the optimization and the adjustment of the marine full-field physical structure by utilizing the marine numerical mode and the observation data assimilation method based on the physical characteristics of the marine average power terrain and the ground reference surface, so that stable and reliable MDT data products can be generated, and the technical problems in the background are solved.
In order to achieve the above purpose, the present invention provides the following technical solutions:
in a first aspect, an embodiment of the present invention provides a method for manufacturing an MDT based on marine numerical pattern and observation assimilation, comprising:
acquiring marine field observation data, and performing quality control and format conversion on the marine field observation data to obtain the observation data meeting the requirements of marine numerical mode format;
based on a plurality of preset moments of the ocean numerical mode, assimilating the observed data, returning the assimilation result to the ocean numerical mode, continuously operating the ocean numerical mode until reaching the preset operation duration, obtaining corresponding long-term operation data, extracting sea surface height variables from the long-term operation data, calculating the average value of the long-term operation data, and manufacturing and generating an MDT data product.
Preferably, the marine field observations comprise: marine temperature field observations and marine salinity profile field observations.
Preferably, the process of quality control thereof comprises: setting corresponding data threshold values according to the physical significance of the ocean site observation data, filtering the ocean site observation data, performing difference judgment according to longitude and latitude coordinates corresponding to the ocean site observation data and the coordinate difference threshold values, and eliminating the ocean site observation data which do not meet the difference judgment.
Preferably, the method for assimilating observations comprises: a set Kalman filtering assimilation method, a set optimal interpolation assimilation method, a three-dimensional variation assimilation method and a four-dimensional variation assimilation method.
Preferably, the preset operation time period includes: for 10 years and more.
Preferably, the long-term operation data is simulation data of continuous operation after the assimilation result is added to the ocean numerical mode.
Preferably, the marine numerical mode comprises: LICOM mode, HYCOM mode, and ROMS mode.
In a second aspect, an embodiment of the present invention provides an MDT manufacturing system based on marine numerical pattern and observation assimilation, comprising:
the data acquisition and processing module is used for acquiring the marine field observation data, and carrying out quality control and format conversion on the marine field observation data to obtain the observation data meeting the marine numerical mode format requirement;
the MDT manufacturing module is used for assimilating the observation data based on a plurality of preset moments of the ocean numerical mode, returning the assimilation result to the ocean numerical mode, continuously operating the ocean numerical mode until reaching the preset operation duration, obtaining corresponding long-term operation data, extracting sea surface height variables from the long-term operation data, calculating the average value of the long-term operation data, and manufacturing and generating an MDT data product.
In a third aspect, an embodiment of the present invention provides a computer apparatus, including: the system comprises at least one processor and a memory communicatively connected with the at least one processor, wherein the memory stores instructions executable by the at least one processor to cause the at least one processor to perform the method of fabricating MDT based on marine numerical pattern and observation assimilation of the first aspect of the embodiments of the invention.
In a fourth aspect, embodiments of the present invention provide a computer-readable storage medium storing computer instructions for causing a computer to execute the method for fabricating an MDT based on the marine numerical pattern and the observed data assimilation of the first aspect of the embodiments of the present invention.
The technical scheme of the invention has the following advantages:
the invention provides a method and a system for manufacturing MDT based on marine numerical mode and observation data assimilation, wherein the method comprises the following steps: acquiring marine field observation data, and performing quality control and format conversion on the marine field observation data to obtain the observation data meeting the marine numerical mode format requirement; based on a plurality of preset moments of the ocean numerical mode, assimilating the observed data, returning the assimilation result to the ocean numerical mode, continuously operating the ocean numerical mode until reaching the preset operation duration, obtaining corresponding long-term operation data, extracting sea surface height variables from the long-term operation data, calculating the average value of the long-term operation data, and manufacturing and generating an MDT data product. According to the method and the system for manufacturing the MDT, the operation data obtained through the marine numerical mode simulation is processed only through the marine numerical mode matching data assimilation method and operated on the supercomputer for a certain time, so that a relatively stable and accurate MDT data product can be obtained. Compared with the satellite inversion data with large difficulty and large error, the method can realize efficient substitution, is beneficial to MDT data support for developing subsequent researches on ocean physical and numerical modes and the like, and is beneficial to transplanting to any ocean numerical mode and a data assimilation system thereof.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic flow chart of a method for manufacturing MDT based on marine numerical mode and observation data assimilation provided in the embodiment of the invention;
FIG. 2 is a schematic representation of the deployment point of a global Argo marine temperature and salinity profile field observation provided in an embodiment of the invention;
FIG. 3 is a schematic diagram of the global distribution of MDT data products from different sources provided in an embodiment of the present invention;
FIG. 4 is a block diagram of an MDT system manufactured based on marine numerical mode and observation data assimilation provided in an embodiment of the present invention;
FIG. 5 is a block diagram of one specific example of a computer device provided in an embodiment of the present invention.
Detailed Description
In order to make the present invention better understood by those skilled in the art, the following description will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments, but not intended to limit the scope of the present disclosure. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the concepts of the present disclosure. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
Example 1
The embodiment of the invention provides a method for manufacturing MDT based on marine numerical mode and observation data assimilation, which comprises the following steps of:
step S1: and obtaining the marine field observation data, and carrying out quality control and format conversion on the marine field observation data to obtain the observation data meeting the marine numerical mode format requirement.
In this embodiment, marine field observations include: marine temperature field observations and marine salinity profile field observations. It should be noted that, the sea surface dynamic topography is the fluctuation of the average sea surface relative to the ground level, which is mainly related to the sea surface height, so in the embodiment of the invention, the sea on-site observation data is selected to be vertical profile observation, including sea temperature on-site observation data and sea salinity profile on-site observation data, and is used for describing the change of the sea surface height.
In this embodiment, the marine temperature field observation data and the marine salinity profile field observation data are obtained by using Argo (Array for Real-time Geostrophic Oceanography) data, which is only used as an example and not limited thereto. Specifically, fig. 2 is a schematic diagram of the deployment point of the global Argo ocean temperature and salinity profile field observation, and it can be seen from the figure that all points are locations with ocean temperature and salinity profile observations, indicating that the Argo data, although in a discrete distribution, currently substantially covers the global ocean.
In this embodiment, the process of quality control of marine field observations includes: setting corresponding data threshold values according to the physical significance of the ocean site observation data, filtering the ocean site observation data, performing difference judgment according to longitude and latitude coordinates corresponding to the ocean site observation data and the coordinate difference threshold values, and eliminating the ocean site observation data which do not meet the difference judgment. In one embodiment, according to the physical significance of the marine temperature on-site observation data and the marine salinity profile on-site observation data, setting the data threshold of the marine temperature to be lower than-2 degrees and higher than 40 degrees, and filtering the marine on-site observation data according to the data threshold of the marine salinity which is lower than 2psu and higher than 38.5 psu; and setting the difference threshold of the ocean temperature coordinates to be less than 0.1 degrees and the difference threshold of the ocean salinity coordinates to be less than 0.1psu, namely, the data of the observed data, namely, the difference threshold of the coordinates of the observed data to be less than 0.1 degrees and 0.1psu, are considered to be repeated observed data, namely, the observed data of the ocean site are not satisfied with the difference judgment and are removed, the numerical values related to the description are exemplified, and the method is not limited and is adaptively adjusted according to the actual application requirements.
In addition, the format of the marine field observation data is converted, and specific format requirements need to be determined according to different values, in this embodiment, the marine numerical mode includes: LICOM mode, HYCOM mode and ROMS mode are only used as examples, and are adapted according to actual application requirements. The ocean numerical mode is a model built for the ocean, and aims to provide a model capable of simulating large-scale wind-induced circulation, hot salt circulation and the like. In one embodiment, the ocean numerical mode selects the LICOM mode, and the format requirement of the ocean site observation data is binary file format, so that the observation data meeting the requirement of the LICOM mode can be obtained after the ocean site observation data is converted, which is only used as an illustration and not a limitation.
Step S2: based on a plurality of preset moments of the ocean numerical mode, assimilating the observed data, returning the assimilation result to the ocean numerical mode, continuously operating the ocean numerical mode until reaching the preset operation duration, obtaining corresponding long-term operation data, extracting sea surface height variables from the long-term operation data, calculating the average value of the long-term operation data, and manufacturing and generating an MDT data product.
In this embodiment, the method for assimilating observation data includes: the method for assimilating the set Kalman filtering, the method for assimilating the set optimal interpolation, the method for assimilating the three-dimensional variation and the method for assimilating the four-dimensional variation are only used as illustration and are determined according to the actual application requirements.
In this embodiment, the preset operation duration includes: for 10 years and more. Specifically, the marine numerical mode is continuously operated until reaching 10 years and more, and corresponding long-term operation data can be obtained, in this embodiment, the long-term operation data is simulation data continuously operated after the assimilation result is added to the marine numerical mode, and the simulation data is subjected to sea surface height variable extraction and average value calculation for making and generating MDT data products.
In one embodiment, the ocean numerical mode is chosen to be LICOM mode, and simulation results obtained by assimilating on-site observations of Argo ocean temperature and salinity profiles over a long period of time are used to produce stable and reliable MDT data products.
Specifically, the method for assimilating the observation data selects an optimal interpolation assimilation method, and the basic theoretical equation is as follows:
λ a ＝λ b +α(C×B)P T (αP(C×B)P T +R) -1 (λ o -Pλ b )
wherein λ represents a mode state quantity, the mode state quantity includes ocean temperature and salinity variables, the superscripts a, B and o represent analysis (after mode adjustment), original (before mode adjustment) and observation respectively, B represents a mode full-field error matrix (obtained based on ocean numerical mode), C represents a dimensionless function for performing regional simplification on the mode full-field error matrix B, P represents an observation operator for adjusting observation data according to a mode requirement format, T represents a matrix transpose symbol, R represents an observation covariance matrix, α represents a relative coefficient for adjusting a relative magnitude between an original mode error and an observation error, and α takes a value of 0.5 in the embodiment of the invention, which is merely used as an example and is adaptively adjusted according to practical application requirements.
According to the basic theoretical equation of the optimal interpolation assimilation of the set, as the ocean temperature and salinity profile on-site observation data on the ocean are densely distributed in each ocean around the world, and the observation depth is up to 3000 meters, the ocean middle and upper physical characteristics of the ocean area near the relevant measuring point are fully represented, so that the ocean temperature and salinity profile on-site observation data are regularly assimilated and added in the process of ocean numerical mode integral operation, more objective and real simulation and depiction of the ocean physical structure can be effectively realized, after long-time simulation (more than 10 years) on the ocean, the ocean surface height data in all simulation results are extracted, and the long-term average value of the ocean surface height data is calculated, so that a relatively real and reliable MDT data product can be obtained.
The MDT data product specifically comprises the following steps:
1. downloading and storing on-site observation data of the Argo ocean temperature and salinity profile;
2. quality control is carried out on the on-site observation data of the Argo ocean temperature and salinity profile, the data which have larger error and obviously do not accord with the reality are removed, and the data are manufactured into a binary file format which accords with LICOM mode reading;
3. the moment of the LICOM mode operation in the ocean numerical mode, namely the assimilation preset moment, needs to be explained, is not particularly limited, and can be set according to different research and application scene requirements; assimilating on-site observation data of the Argo ocean temperature and salinity profile by an aggregate optimal interpolation assimilation method, and realizing integral adjustment of an ocean physical structure;
4. the data which is well regulated after assimilation is returned to the ocean numerical mode LICOM mode, and the LICOM mode continues to operate until the time of assimilation is set next time;
5. when the ocean numerical mode LICOM mode and the on-site observation data of assimilating Argo ocean temperature and salinity profile continuously and stably run, the operation data of more than 10 years are obtained, the sea surface height variable is extracted from the operation data, and the multi-year average value of the sea surface height variable is calculated and used for manufacturing and generating MDT data products.
The MDT is manufactured and generated through the MDT manufacturing process, and the MDT is shown in fig. 3. It should be noted that, different gray values in fig. 3 represent different sea heights (units: m) of the tropical pacific ocean; the upper diagram in FIG. 3 is the MDT generated by satellite observation data production; the middle diagram of fig. 3 is MDT generated by long-time free integration of the limom mode; the following diagram in fig. 3 illustrates the MDT produced by an embodiment of the present invention. It can be seen from the figure that the more similar or closer the MDT is generated with the satellite observation data, i.e. the upper image in FIG. 3, the more true and reliable the MDT is generated. Although the three graphs of fig. 3 all show the characteristic of relatively consistent MDT distribution, the MDT produced by the embodiment of the present invention can be consistent with the MDT distribution produced by satellite observation data production, and has better reproducibility for a large-value area (solid line box area in fig. 3) exemplified by the pacific northwest, and relatively consistent with the MDT distribution produced by satellite observation data production for a long time and free integration for an atlantic middle area (broken line box area in fig. 3).
In summary, the method for manufacturing MDT based on the marine numerical mode and the assimilation of the observation data provided by the embodiment of the invention is based on the actual demands of accurate data of sea surface and atmospheric reference surface in the field of marine satellite observation and marine numerical mode in the field of marine observation application and numerical mode simulation, combines the physical meanings of the marine reference surface and the marine surface dynamic topography, designs the method for assimilating the marine temperature and salinity profile on-site observation data added into the current research and service field in the marine numerical mode, and avoids the obtained numerical simulation long-term average result of the optimized marine whole-layer physical structure by long-time iterative simulation, thereby avoiding the data errors caused by lack of long-term and comprehensive accurate observation on the global earth reference surface, and realizing the feasible method for generating the average dynamic topography MDT by using the earth reference surface as reference calculation through the marine numerical simulation means.
Example 2
The embodiment of the invention provides an MDT system manufactured based on marine numerical mode and observation data assimilation, which is shown in fig. 4 and comprises the following steps:
the data acquisition and processing module is used for acquiring the marine field observation data, and carrying out quality control and format conversion on the marine field observation data to obtain the observation data meeting the marine numerical mode format requirement; this module performs the method described in step S1 in embodiment 1, and will not be described here again.
The MDT manufacturing module is used for assimilating the observation data based on a plurality of preset moments of the ocean numerical mode, returning the assimilation result to the ocean numerical mode, continuously operating the ocean numerical mode until reaching the preset operation duration, obtaining corresponding long-term operation data, extracting sea surface height variables from the long-term operation data, calculating the average value of the long-term operation data, and manufacturing and generating an MDT data product; this module performs the method described in step S2 in embodiment 1, and will not be described here.
The MDT system is manufactured based on the ocean numerical mode and the observation data assimilation, and based on physical characteristics of ocean average power terrain and a ground reference surface, the ocean temperature and the salinity profile on-site observation data are assimilated for a long time in the ocean numerical mode by utilizing the ocean numerical mode and the observation data assimilation method, so that ocean full-field physical structure optimization adjustment is realized, and stable and reliable MDT data products can be generated.
Example 3
An embodiment of the present invention provides a computer device, as shown in fig. 5, including: at least one processor 501, at least one communication interface 503, a memory 504, and at least one communication bus 502. The communication bus 502 is used to implement connection communication between these components, and the communication interface 503 may include a display screen and a keyboard, and the optional communication interface 503 may further include a standard wired interface and a wireless interface. The memory 504 may be a high-speed volatile random access memory, a non-volatile memory, or at least one memory device located remotely from the processor 501. Wherein the processor 501 may perform the ocean numerical pattern and observation assimilation based MDT method of embodiment 1. A set of program codes is stored in the memory 504, and the processor 501 calls the program codes stored in the memory 504 for performing the ocean numerical pattern and observation assimilation based MDT method of embodiment 1.
The communication bus 502 may be a peripheral component interconnect standard (Peripheral Component Interconnect, PCI) bus or an extended industry standard architecture (Extended Industry Standard Architecture, EISA) bus, among others. The communication bus 502 may be divided into an address bus, a data bus, a control bus, and the like. For ease of illustration, only one line is shown in fig. 5, but not only one bus or one type of bus.
Wherein the Memory 504 may include Volatile Memory (RAM), such as random access Memory (Random Access Memory); the Memory may also include a nonvolatile Memory (Non-volatile Memory), such as a Flash Memory (Flash Memory), a Hard Disk (HDD) or a Solid State Drive (SSD); memory 504 may also include a combination of the types of memory described above.
The processor 501 may be a central processing unit (Central Processing Unit, abbreviated as CPU), a network processor (Network Processor, abbreviated as NP) or a combination of CPU and NP.
The processor 501 may further include a hardware chip, among others. The hardware chip may be an Application-specific integrated circuit (ASIC), a programmable logic device (Programmable Logic Device, PLD), or a combination thereof. The PLD may be a complex programmable logic device (Complex Programmable Logic Device, CPLD for short), a field programmable gate array (Field Programmable Gate Array, FPGA for short), general-purpose array logic (Generic Array Logic, GAL for short), or any combination thereof.
Optionally, the memory 504 is also used for storing program instructions. The processor 501 may invoke program instructions to implement the method of creating MDT based on marine numerical patterns and observation assimilation as in embodiment 1 of the present invention.
The embodiment of the invention also provides a computer readable storage medium, and the computer readable storage medium stores computer executable instructions thereon, wherein the computer executable instructions can execute the method for manufacturing MDT based on the marine numerical mode and the observed data assimilation of the embodiment 1. The storage medium may be a magnetic Disk, an optical disc, a Read Only Memory (ROM), a random access Memory (Random Access Memory RAM), a Flash Memory (Flash Memory), a Hard Disk (HDD), a solid state Disk (Solid State Drive SSD), or the like; the storage medium may also comprise a combination of memories of the kind described above.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present invention.
Claims (10)
1. The MDT manufacturing method based on marine numerical mode and observation data assimilation is characterized by comprising the following steps:
acquiring marine field observation data, and performing quality control and format conversion on the marine field observation data to obtain the observation data meeting the requirements of marine numerical mode format;
assimilating the observation data based on a plurality of preset moments of the ocean numerical mode, returning the assimilation result to the ocean numerical mode, continuously running the ocean numerical mode until reaching the preset running time, obtaining corresponding long-term running data, extracting sea surface height variables from the long-term running data, calculating the average value of the long-term running data, and manufacturing and generating an MDT data product.
2. The method for manufacturing MDT based on marine numerical pattern and profile assimilation of claim 1, wherein said marine field observations comprises: marine temperature field observations and marine salinity profile field observations.
3. The method for manufacturing the MDT based on the marine numerical mode and the observation assimilation according to claim 2, wherein the process for performing the quality control comprises the following steps: setting corresponding data threshold values according to the physical significance of the ocean site observation data, filtering the ocean site observation data, performing difference judgment according to longitude and latitude coordinates corresponding to the ocean site observation data and coordinate difference threshold values, and eliminating the ocean site observation data which do not meet the difference judgment.
4. The method for making MDT based on marine numerical pattern and observation assimilation according to claim 1, wherein said method for assimilating observation comprises: a set Kalman filtering assimilation method, a set optimal interpolation assimilation method, a three-dimensional variation assimilation method and a four-dimensional variation assimilation method.
5. The method for manufacturing the MDT based on the marine numerical mode and the observation assimilation according to claim 1, wherein the preset operation duration comprises: for 10 years and more.
6. The method for manufacturing MDT based on the marine numerical mode and the observation data assimilation according to claim 1, wherein the long-term operation data is simulation data of continuous operation after the marine numerical mode is added to the assimilation result.
7. The method for manufacturing the MDT based on the marine numerical mode and the observation assimilation according to claim 1, wherein the marine numerical mode comprises: LICOM mode, HYCOM mode, and ROMS mode.
8. An MDT system based on marine numerical pattern and observation assimilation, comprising:
the data acquisition and processing module is used for acquiring the marine field observation data, and carrying out quality control and format conversion on the marine field observation data to obtain the observation data meeting the marine numerical mode format requirement;
the MDT manufacturing module is used for assimilating the observation data based on a plurality of preset moments of the ocean numerical mode, returning the assimilation result to the ocean numerical mode, continuously operating the ocean numerical mode until reaching the preset operation duration, obtaining corresponding long-term operation data, extracting sea surface height variables from the long-term operation data, calculating the average value of the long-term operation data, and manufacturing and generating an MDT data product.
9. A computer device, comprising: at least one processor, and a memory communicatively coupled to the at least one processor, wherein the memory stores instructions executable by the at least one processor to cause the at least one processor to perform the ocean numerical pattern and observation assimilation-based MDT method of any one of claims 1-7.
10. A computer-readable storage medium storing computer instructions for causing the computer to perform the method of making MDT based on marine numerical pattern and observation data assimilation of any of claims 1-7.
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| US20230048788A1 (en) * | 2021-08-06 | 2023-02-16 | The Government Of The United States Of America, As Represented By The Secretary Of The Navy | Method and System for Multi-scale Assimilation of Surface Water Ocean Topography (SWOT) Observations |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20230048788A1 (en) * | 2021-08-06 | 2023-02-16 | The Government Of The United States Of America, As Represented By The Secretary Of The Navy | Method and System for Multi-scale Assimilation of Surface Water Ocean Topography (SWOT) Observations |
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